Ice concrete



COMPOSITIONS, COATING OR PLASTIC.

UNITED STATES PATENT OFFICE.

VIKTOR WIKKULA, F HELSINLGFORS, FINLAND.

\ ICE CONCRETE.

1T0 Drawing. Application filed March 14, 1924, Serial No. 699,388, andin Finland January 21, 1924. The cement products hitherto known, likeinsulated in the aforesaid way, be put into concrete and other mineralbuilding matethe mixture cement with its additional marials, have thedrawback. that they are bad heat and sound insulators, maln'y inconsequence of the density of the material;

terials, or other hardening materials, ac-

cording to the desirable degree of strength therefor they aredisadvantageous in other than supporting parts. In Sweden there has beeninvented a so-called gas-concrete, which is porous, but which again hasthe great drawback, that it is not possible to shape it at will untilafter it has hardened.

of the intended piece. Thus it is possi e to predetermine th d uan 1v 1tie mg a (Y aller uantit of re er or smaller snow or ice par 1c es inpropor- 1 tion to the other parts of the mixture. After all thesecompositions have been well mixed After long experimenting I haveinvented together, the mass can be stam ed. ressed a material and amethod, by which concrete or moulded into pieces of esire s iape an orany other hydraulically hardening masize.

terial can be made more or less porous, and After the stamping, pressingor mouldby means of stam ing, pressing or moulding ing the pieces madeare brought into :1

immediately be s aped at will. It is even warm room where the hardeningcan at possible to predetermine the bearing Once quietly begin, and thesnow or ice parstrength ofthe pieces, and likewise the size ticles,which are contained in the mass, can and uantity of the pores, as wellas the begin to melt, giving the mass the humidity, quantity andsynthesis of the additional mawhich for instance cement needs forhardterials to be used for theipieces, according to ening. As the snowor ice partices enwhether they are to be used for exterior closed by ahydraulic material. for instance walls, partition-walls, ceilings, orother purplaster, melt er, which is partly abposes. sorbed by the mass,and partly evaporates Such a porous building material, iceinto the air,the mass gets porous in desired concrete, is made by means of mixingsnow degree, because it cannot even in its fresh crumbled ice orartificial hailstones with state shrink, this being prevented by .thealsoinc me i v mar clung 1v ran 10 ma erial, ready hardened insulatinglayer, which enfor ins ance pas or, w nci enc oses am .111- closes thesnow or ice particles, and is suiates all ice particles .used in formedfor instance by plaster, as above deorder to produce pores in theintended mass; scribed.

at the same time this enclosing material I claim:

prevents thesnow or ice particles from melt-i: A method of preparingporous building 5 mg too quickly, thus facilitating the sta j material,which consists in mixing with par-1%,,

ing or pressing of the mass to pieces of ticles of ice, a rapidlysetting hydraulic subsired shape. Should it be desirable tigtitancethereby to form an insulating coatin mould the piece, water is addeduntil th on said particles, and mixing said particles,

' mixture becomesmut not before th 4 into a hydraulically hardeningconcrete snou or ice particles have been enclosed be mass. t thehydraulic material, e. g. plaster. ia-'1", In testimony whereof I havesigned my Should it be desirable to use several ma -name to thisspecification.

terials, as for instance cement 620., there i can, after the snow ormoms have bcen VIKTOR WIKKULA. v

